diff --git a/internal/handler/terminal.go b/internal/handler/terminal.go
index d5090b62..2609698a 100644
--- a/internal/handler/terminal.go
+++ b/internal/handler/terminal.go
@@ -96,7 +96,7 @@ func (h *TerminalHandler) RunCommand(c *gin.Context) {
 	} else {
 		cmd = exec.CommandContext(ctx, shell, "-c", cmdStr)
 		// 无 TTY 时设置 COLUMNS/TERM，使 ping 等工具的 usage 排版与真实终端一致
-		cmd.Env = append(os.Environ(), "COLUMNS=120", "LINES=40", "TERM=xterm-256color")
+		cmd.Env = append(os.Environ(), "COLUMNS=256", "LINES=40", "TERM=xterm-256color")
 	}
 
 	if req.Cwd != "" {
@@ -218,7 +218,7 @@ func (h *TerminalHandler) RunCommandStream(c *gin.Context) {
 		cmd = exec.CommandContext(ctx, "cmd", "/c", cmdStr)
 	} else {
 		cmd = exec.CommandContext(ctx, shell, "-c", cmdStr)
-		cmd.Env = append(os.Environ(), "COLUMNS=120", "LINES=40", "TERM=xterm-256color")
+		cmd.Env = append(os.Environ(), "COLUMNS=256", "LINES=40", "TERM=xterm-256color")
 	}
 	if req.Cwd != "" {
 		absCwd, err := filepath.Abs(req.Cwd)
diff --git a/internal/handler/terminal_stream_unix.go b/internal/handler/terminal_stream_unix.go
index 79439c98..9b543b6c 100644
--- a/internal/handler/terminal_stream_unix.go
+++ b/internal/handler/terminal_stream_unix.go
@@ -11,7 +11,7 @@ import (
 	"github.com/creack/pty"
 )
 
-const ptyCols = 120
+const ptyCols = 256
 const ptyRows = 40
 
 // runCommandStreamImpl 在 Unix 下用 PTY 执行，使 ping 等命令按终端宽度排版（isatty 为真）
diff --git a/internal/handler/terminal_ws_unix.go b/internal/handler/terminal_ws_unix.go
index a8f5faae..76a822a7 100644
--- a/internal/handler/terminal_ws_unix.go
+++ b/internal/handler/terminal_ws_unix.go
@@ -37,7 +37,7 @@ func (h *TerminalHandler) RunCommandWS(c *gin.Context) {
 	}
 	cmd := exec.Command(shell)
 	cmd.Env = append(os.Environ(),
-		"COLUMNS=120",
+		"COLUMNS=256",
 		"LINES=40",
 		"TERM=xterm-256color",
 	)
@@ -55,7 +55,7 @@ func (h *TerminalHandler) RunCommandWS(c *gin.Context) {
 		for {
 			n, err := ptmx.Read(buf)
 			if n > 0 {
-				_ = conn.WriteMessage(websocket.TextMessage, buf[:n])
+				_ = conn.WriteMessage(websocket.BinaryMessage, buf[:n])
 			}
 			if err != nil {
 				break
diff --git a/web/static/js/terminal.js b/web/static/js/terminal.js
index b7c45f3d..b09dcb64 100644
--- a/web/static/js/terminal.js
+++ b/web/static/js/terminal.js
@@ -100,7 +100,22 @@
 
             ws.onmessage = function (ev) {
                 if (!tab.term) return;
-                tab.term.write(ev.data);
+                // 处理二进制消息和文本消息
+                if (ev.data instanceof ArrayBuffer) {
+                    var decoder = new TextDecoder('utf-8');
+                    tab.term.write(decoder.decode(ev.data));
+                } else if (ev.data instanceof Blob) {
+                    // Blob 类型，需要异步读取
+                    var reader = new FileReader();
+                    reader.onload = function () {
+                        var decoder = new TextDecoder('utf-8');
+                        tab.term.write(decoder.decode(reader.result));
+                    };
+                    reader.readAsArrayBuffer(ev.data);
+                } else {
+                    // 字符串类型
+                    tab.term.write(ev.data);
+                }
             };
 
             ws.onclose = function () {